/*
* Conditions Of Use 
* 
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain.  As a result, a formal
* license is not needed to use the software.
* 
* This software is provided by NIST as a service and is expressly
* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY.  NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
* 
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*  
* .
* 
*/
/*******************************************************************************
* Product of NIST/ITL Advanced Networking Technologies Division (ANTD).        *
*******************************************************************************/
package gov.nist.javax.sip.header;

import java.util.ListIterator;

import javax.sip.header.ExtensionHeader;
import javax.sip.header.Header;

/**
 * A generic extension header list.
 * @version 1.2 $Revision: 1.7 $ $Date: 2007/10/26 03:53:17 $
 * @since 1.1
 */
public class ExtensionHeaderList extends SIPHeaderList<ExtensionHeaderImpl> { 

	
	
	private static final long serialVersionUID = 4681326807149890197L;


	public Object clone() {
		ExtensionHeaderList retval = new ExtensionHeaderList(headerName);
		retval.clonehlist(this.hlist);
		return retval;
	}
	public ExtensionHeaderList(String hName) {
		super( ExtensionHeaderImpl.class, hName);
	}
	
	public ExtensionHeaderList() {
		super(ExtensionHeaderImpl.class,null);
	}
	
	
	public String encode() {
		StringBuffer retval = new StringBuffer();
		ListIterator<ExtensionHeaderImpl> it = this.listIterator();
		while(it.hasNext()) {
		   ExtensionHeaderImpl eh = (ExtensionHeaderImpl) it.next();
		   retval.append(eh.encode());
		}
		return retval.toString();
	}
}
